Axial Flow Fan Selection

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A REGAL-BELOIT COMPANY

Axial Flow Fan And Centrifugal Fan

Fans for the Long Run!

MARATHON Electric the Pioneer and acknowledged leader in Air Technology offers a wide range of AXIAL Flow and Centrifugal Fans suitable for Industrial ventilation, Air Conditioning, Dust extraction and Fume extraction systems. Custom built fans catering to the specific requirement of Steel Plant, Fertilizer Plant, Tea Industry, Mine, Ship, Power Plants (Thermal and Nuclear) Chemical Plant etc. are also available.

Axial Flow Fans are tested in accordance with IS-3588-1991. Standard fans are finished with synthetic enamel paint. Depending on application, fans can be supplied with casing made of stainless steel or zinc sprayed MS sheet. Epoxy / chlorinated rubber paint may also be provided.

MARATHON Electric Flame Proof Axial Fans are available from sizes 15" to 75" and are used extensively in Fire Hazard Areas. Roof Extractor Unit :

Fans are available both in Wall Mounted and Duct Mounted

AXIAL FLOW FAN Features Axial Flow Fans are available in wide range of combination from 12" to 75" diameter fitted with Motors from 0.37 kW to 110 kW in 2 Pole, 4 Pole, 6 versions. Motors are suitable for 415 volts ±10%, 50 Hz ±5%, 3 Phase Power Supply, as per IS:325/1996, which are in-house manufactured ensuring better fitment and proper matching. Fans are available in single phase version also.

MARATHON Electric Roof Extractor Units are available from sizes 19" to 60", fitted with Hood and Bottom Plate. These units are used on the roof to extract and exhaust contaminated air.

Wall Mounted Fan

configuration. Fan selection chart (full solidity in 12" to 60", Full/half solidity in 75") and general arrangement dimensions are given in Table -1 & 2 respectively. Following special application fans are also offered depending on application and end use.

Belt Driven Fan :

Bifurcated Fans :

Duct mounted Fan

Axial Flow Fans are capable of handling upto 300000 m3/hr air delivery and static pressure upto 120 MM WG. Further pressure can be developed with multiple staging of fans. Construction Fan Casing is made of heavy gauge MS Sheet (as per IS-1079/2062) having robust construction. It has flanges at both ends for easy fixing on ducts/walls.

MARATHON Electric Bifurcated Fans are available from sizes 19" to 75". These fans are used to handle hazardous air, where motors are kept outside the air stream. Flame Proof Fans :

MARATHON Electric Belt Driven Fans are available from sizes 19" to 75". Fans are driven by belt and pulley arrangement. The motor is located outside the air stream. Accessories : Following (optional) accessories are also available. ■ Louvre Shutter

Impeller is made of Die Cast aluminium (LM-6 of BS 1490/IS 617 Gr. 4600) having aerofoil design with adjustable pitch angles. The solidity (No. of wings) is varied in order to use the most efficient part of the fan characteristics.

■ Wall Cowl and Bird Screen ■ Filter / Filter Frame with adapter cone ■ Dampers 1

Table 1 4 LUGS 12K-30J FAN 5 LUGS 38J-48J FAN Ø'N' HOLES AT 'P' PCD.

Ø‘A’ INSIDE ‘B’ PCD

AIR FLOW

CL OF INSP DOOR

'F' NOS Ø'G' HOLES EQUISPACED ON 'K' FLANGE. HOLES ON CRS FOR SIZES 24J30J & 48J, OFF CENTERS FOR OTHER SIZES.

'C'

'C'

C.L. OF INSP DOOR

L1

'F' NOS Ø'G' HOLES EQUISPACED ON 'K' FLANGE. HOLES ON CRS FOR SIZES 24J, 30J, 48J & 60J, OFF CENTRES FOR OTHER SIZES.

AIR FLOW

'B' PCD

Ø 'A' Inside

NO OFF WINGS DEPENDS ON FAN MODEL

‘M’

'E' CRS. 'D'

ELEVATION

VIEW FROM IMPELLER END

4 NOS Ø12 HOLES FOR 12K-24J FANS 4 NOS Ø14 HOELS FOR 30J-60J FANS

'E' CRS.

VIEW FROM IMPELLER END

LONG CASING DUCT MOUNTED FAN MODEL 12K/K37-P2 12K/K55-P2 15J/K37-P4 15J/K55-P2 15J/K75-P2 15J/1K1-P2 15J/1K5-P2 19J/K37-P4 19J/K75-P4 19J/1K5-P2 19J/2K2-P2 19J/3K7-P2 24J/K37-P6 24J/K55-P6 24J/K75-P4 24J/1K1-P4 24J/1K5-P4 24J/2K2-P4 30J/K55-P6 30J/K75-P6 30J/1K1-P6 30J/1K5-P6 30J/1K5-P4 30J/2K2-P4 30J/3K7-P4 30J/5K5-P4 38J/1K5-P6 38J/2K2-P6 38J/3K7-P6 38J/5K5-P6 38J/5K5-P4 38J/7K5-P4 38J/11K-P4 38J/15K-P4 38J/18K5-P4 48J/5K5-P6 48J/7K5-P6 48J/11K-P6 48J/15K-P6 48J/18K5-P6 48J/18K5-P4 48J/22K-P4 48J/30K-P4 48J/37K-P4 48J/45K-P4 60J/18K5-P6 60K/22K-P6 60J/30K-P6 60J/37K-P6 60J/45K-P6 60J/55K-P6

MOTOR RATING 0.37 kW 2 POLE 0.55 kW 2 POLE 0.37 kW 4 POLE 0.55 kW 2 POLE 0.75 kW 2 POLE 1.1 kW 2 POLE 1.5 kW 2 POLE 0.37 kW 4 POLE 0.75 kW 4 POLE 1.5 kW 2 POLE 2.2 kW 2 POLE 3.7 kW 2 POLE 0.37 kW 6 POLE 0.55 kW 6 POLE 0.75 kW 4 POLE 1.1 kW 4 POLE 1.5 kW 4 POLE 2.2 kW 4 POLE 0.55 kW 6 POLE 0.75 kW 6 POLE 1.1 kW 6 POLE 1.5 kW 6 POLE 1.5 kW 4 POLE 2.2 kW 4 POLE 3.7 kW 4 POLE 5.5 kW 4 POLE 1.5 kW 6 POLE 2.2 kW 6 POLE 3.7 kW 6 POLE 5.5 kW 6 POLE 5.5 kW 4 POLE 7.5 kW 4 POLE 11 kW 4 POLE 15 kW 4 POLE 18.5 kW 4 POLE 5.5 kW 6 POLE 7.5 kW 6 POLE 11 kW 6 POLE 15 kW 6 POLE 18.5 kW 6 POLE 18.5 kW 4 POLE 22 kW 4 POLE 30 kW 4 POLE 37 kW 4 POLE 45 kW 4 POLE 18.5 kW 6 POLE 22 kW 6 POLE 30 kW 6 POLE 37 kW 6 POLE 45 kW 6 POLE 55 kW 6 POLE

'D'

ELEVATION

‘M’

NO LEG FOR 12 K-24J FANS 4 NOS Ø14 HOLES FOR 30J-48J FANS

SHORT CASING WALL MOUNTED

L

L1

A

B

C

D

E

F

G

K

M

N

P

380

225

305

349

203

305

273

8

10

40x6

36

14

440

225

381

425

241

381

343

8

11

40x6

36

14

530

420 450 520

225

483

541

311

483

438

8

14

40x6

36

14

640

406

225

610

668

381

610

559

12

14

40x6

36

18

770

762

821

483

762

711

12

14

40x6

36

18

920

18

1160

22

1480





380 406 406

430 460 430 450 480 450 480 524

225 280 225 280

510 560 590

280

560 590

965

760

305

870 640 770 770 870 910 870 870 910



1000 920 920 1000 1060 – –

36 1035

597

965

914

16

18

65x6 41

305

41

500

1219

76 41



76

– – – – – –

1526

1289

1626

737

921

1220

1524

1143

1422

20

24

18

18

65x6

65x8

78

Notes : [1] All dimensions are in mm subject to tolerence as per IS 2102. [2] Power Supply 415 V ± 10%, 3 PH, 50 Hz ± 5%, AC [3] Motor Degree of protection : IP-55 [4] Motor Class of Insulation : 'F' (temp limited to class 'B') [5] Painting Specification - 1 Coat of primer & 1 coat of synthetic enamel paint of colour D. A. Grey

2

SELECTION CHART – STANDARD AXIAL FLOW FAN Table 2 Sl.

Fan Model

No.

Fan dia Motor rating Motor F/S Free air

Volume flow in m3/hr at different Static pressure in mmwg

in mm

kw/pole

in rpm

m3/hr

5

10

15

20

25

30

35

40

50

60

70

80

90

100

110

1

12K/K37-P2

305

0.37/2

2800

2300



2000

1750

1400























2

12K/K37-P2

305

0.37/2

2800

3900



3200

3000

2650























3

12K/K55-P2

305

0.55/2

2800

4400



3850

3650

3300























4

15J/K37-P4

381

0.37/4

1440

1750

1400

850



























5

15J/K37-P4

381

0.37/4

1440

4500

3700

3100



























6

15J/K55-P2

381

0.55/2

2850

4500



4100

3900

3700

3300 3000

2600

















7

15J/K75-P2

381

0.75/2

2850

5600



5300

5100

5000

4600 4300

3700

















8

15J/1K1-P2

381

1.1/2

2850

7200



6700

6500

6200

5700 5400

5000

















9

15J/1K5-P2

381

1.5/2

2850

8500



8000

7850

7300

7100 6800

6300

















10

19J/K37-P4

483

0.37/4

1440

6750

6000

5500

4400

























11

19J/K75-P4

483

0.75/4

1440

8600

8000

7500

6200

























12

19J/1K5-P2

483

1.5/2

2900

7500







6500

6200 6000

5800 5200

4500

3500











13

19J/2K2-P2

483

2.2/2

2900

11500







10000 9800 9500

9000 8600

7500

6500











14

19J/3K7-P2

483

3.7/2

2900

15300







14200 13850 13600 13100 12700 11700 10500











15

24J/K37-P6

610

0.37/6

940

4900

4000

2200



























16

24J/K55-P6

610

0.55/6

940

11000

8700

8000



























17

24J/K75-P4

610

0.75/4

1440

10000



9000

8300

7000























18

24J/1K1-P4

610

1.1/4

1440

13500



12000 10000 9800























19

24J/1K5-P4

610

1.5/4

1440

15500



13600 13000 11300























20

24J/2K2-P4

610

2.2/4

1440

17000



16500 15500 14000























21

24K/5K5-P2

610

5.5/2

2950

19500







18000 17900 17800 17100 16500 15500 14500 13500 12300 11000





22

24K/7K5-P2

610

7.5/2

2950

22500







21500 21250 21000 20500 20000 19000 185000 17500 16000 14500





23

24K/11K-P2

610

11/2

2950

28500







27000 26750 26500 26000 25500 24500 23000 22000 21000 20000





24

30J/K55-P6

762

0.55/6

940

10500

9500

8000

6000

























25

30J/K75-P6

762

0.75/6

940

15000

13500 11750 9000

























26

30J/1K1-P6

762

1.1/6

940

18000

17000 15000 12000

























27

30J/1K5-P6

762

1.5/6

940

21500

20000 18000 15800

























28

30J/1K5-P4

762

1.5/4

1450

14000



13000 12000 11300 10250 9000

8000

















29

30J/2K2-P4

762

2.2/4

1450

18500



17000 15800 15000 14000 12800 11000

















30

30J/3K7-P4

762

3.7/4

1450

22000



20500 19800 18500 17800 16500 14500

















31

30J/5K5-P4

762

5.5/4

1450

34000



32000 31000 29000 27500 26000 24000

















32

38J/1K5-P6

965

1.5/6

960

19500



17000 15250 13000 9800





















33

38J/2K2-P6

965

2.2/6

960

25000



21500 19500 18000 14800





















34

38J/3K7-P6

965

3.7/6

960

36500



33500 31500 29500 26500





















3

Sl.

Fan Model

No.

Fan dia Motor rating Motor F/S Free air

Volume flow in m3/hr at different Static pressure in mmwg

in mm

kw/pole

in rpm

m3/hr

5

10

15

20

25

42000 39000 37000 34000

30

35

40

50

60

70

80

90

100

110





















35

38J/5K5-P6

965

5.5/6

960

45000



36

38J/5K5-P4

965

5.5/4

1475

30000







26000 25000 24500 23000 22000 18000 15000











37

38J/7K5-P4

965

7.5/4

1475

39000







35000 33000 32500 30500 30000 26000 22000











38

38J/11K-P4

965

11/4

1475

48000







46000 45000 44000 42500 41000 37500 32500











39

38J/15K-P4

965

15/4

1475

61000







56000 54500 54000 51500 51000 47000 44000











40

38J/18K5-P4

965

18.5/4

1475

68000







65000 63000 62000 60000 58500 54500 51000











41

48J/5K5-P6

1219

5.5/6

975

42000







36000 34500 30500 28000 22000















42

48J/7K5-P6

1219

7.5/6

975

55000







47000 45500 43000 39000 35000















43

48J/11K-P6

1219

11/6

975

72000







62000 59500 57000 52500 50000















44

48J/15K-P6

1219

15/6

975

83000







77000 74500 69000 67500 64000















45

48J/18K5-P6

1219

18.5/6

975

90000







85000 81000 75000 73000 70000















46

48J/18K5-P4

1219

18.5/4

1480

62000

















50000 45000 41000 38000 35000 28000



47

48J/22K-P4

1219

22/4

1480

71000

















59000 57000 54000 49000 44000 39000



48

48J/30K-P4

1219

30/4

1480

92000

















80000 75000 70000 68000 62000 53000



49

48J/37K-P4

1219

37/4

1480

102000

















88000 84000 80000 75000 71000 67000



50

48J/45K-P4

1219

45/4

1480

150000

















102000 98000 95000 90000 85000 78000



51

60J/18K5-P6

1524

18.5/6

975





















50000 40000









52

60J/22K-P6

1524

22/6

975





















62000 50000









53

60J/30K-P6

1524

30/6

975





















85000 69000









54

60J/37K-P6

1524

37/6

975





















100000 90000









55

60J/45K-P6

1524

45/6

975





















124000 108000









56

60J/55K-P6

1524

55/6

975



















139000 127000









57 75J1/2/30K-P6

1905

30/6

975



















110000 93000 80000 50000







58 75J1/2/37K-P6

1905

37/6

975



















130000 115000 100000 60000







59 75J1/2/55K-P6

1905

55/6

975



















180000 165000 150000 130000







60

75J/2/75K-P6

1905

75/6

975



















218000 208000 188000 168000







61

75J/55K-P6

1905

55/6

975



























105000 95000 85000

62

75J/75K-P6

1905

75/6

975



























140000 115000 95000

NOTE : 1. Fan slection is based on air at 20°C and density 1.2 kg/m3 2. Fan performance and tolerance as per IS 3588 – 1987. 3. For selection of Fans in other solidity (no of blades), or in intermediate performance point please refer to Regional/Branch Offices or Factory

4

Fan static pressure Ps

Fan efficiency η%

CENTRIFUGAL FAN

P

Ps

Impreller Power P

η%

Volume Flow

Features MARATHON Electric offers wide range of Centrifugal Fans with highly efficient impellers of type Backward Inclined, Backward Curved, Aerofoiled, Forward Curved and Straight Radial, depending upon application.

1570) shaft. Double Row Ball/Spherical roller Bearings are used for smooth operation. Fans are either belt driven or direct coupled. Direct driven Fans, with Impeller mounted directly on motor shaft, are also available. ■ Standard Fans are painted with synthetic enamel paint. ■ Other than mild steel, fans are offered in Stainless Steel and Aluminium Construction also, depending on application need. ■ For High temperature (from 100°C to 350°C) application, Aluminium cooling disc is provided and the fan is painted with Heat Resistant Aluminium Paint.

Special features Following Special Features are provided depending application need. ■ Spark Proof Construction. ■ FRP Coating. ■ Zinc Sprayed. ■ Epoxy Paint. ■ Chlorinated rubber paint. Following optional acessories are also available. ■ Common base frame for Fan and Motor. ■ V-belt drive set. ■ Belt guard.

MARATHON Electric Centrifugal Fans are suitable for air delivery upto 300,000 M3/Hr and Static Pressure upto 800 MM WG. Fans are available both in single inlet single width (SISW) and in double inlet double width (DIDW) versions.

■ Motor slide rail ■ Foundation bolt ■ Filter ■ Filter frame with adapter cone. ■ Inlet and outlet flexible connection.

Construction :

■ Inlet box

Centrifugal Fans are usually made of mild steel (IS 1079/2062) rigid casing with Inspection window and drain plug. The impeller is mounted on C-40 (IS

■ Inlet and outlet dampers ■ Antivibration mounting. Discharge Rotation : Fans are available in different discharge angles from 0° to 315° both in left hand and right hand rotation viewing from motor end with motor position as X, Y, W & Z. LG 0

Backward inclind

LG 270

LG 45

Backward curved

LG 90

Reverse the rotation is RD

Fan

Aerofoil

Backplate paddle W

Z LG 315

Y

Radial

X Motor position

Radial tipped 5

Arrangement : Fans are manufactured in five different drive arrangements depending upon application. Arrangement 1 Single inlet pedestal

Arrangement 3 Single inlet bearer bar

For belt drive. Impeller overhung. Two bearings on fulldepth pedestal.

For belt drive. One bearing on each side of casing, supported by bearer bars.

Arrangement 4 Single inlet direct drive and stool

Arrangement 6 Double inlet bearer bar

Arrangement 7 Single inlet coupling

For direct drive. Impeller overhung on motor shaft. No bearings on fan. Motor feet supported by full-depth pedestal.

Double inlet, double width fan for belt drive. One bearing in each inlet, supported by bearer bars.

For coupling drive. Generally as arrangement 1 but pedestal extended to receive motor.

Other products

Pedestal Man cooler size 19" to 36"

Bracket Man cooler size 19" to 36"

Propeller Fan BVN/BVA size 18" to 36"

Tubular Man cooler size 19" to 48"

Pedestal Air circulators size 24" 6

Propeller Fan GPN size 12" to 18"

Bracket Air Circulator size 24" to 30"

A REGAL-BELOIT COMPANY

Marathon Electric Motors (India) Ltd. Registered & Head Office: 58, Taratala Road, Kolkata - 700024. LT Motor & Fan Factory, Paharpur Works, 58, Taratala Road, Kolkata - 700024, Fax: 2469 5369 / 8530, Phone : 09903900801. Large LT Motor & HT Motor Factory, AEI Works 1, Taratala Road, Kolkata- 700024. Marathon Regional Offices: New Delhi: 708, Eros Building, 56, Nehru Place; Tel: 011 4160 7123, 09313290402. Chandigarh: Chamber No. 8a, 2 Floor, Sco No. 2441-42, Sector 22-C; Tel: 09316102451. Mumbai:114 Navneelam, R.G. Thadani Marg, Worli; Tel: 022 3265 9844, 09322645753, Fax: 022 3040 1555. Pune: 41/14, Office Club Swaroop Complex Karve Road; Tel: 020 2546 3978, 09371025388. Ahmedabad: 415 / Platinum Plaza, Nr. Pushkar Tower, Judge-bunglow-bodakdev Road; Tel: 079 2560 2297, 09327048567. Nagpur: 1 Floor, Block A, Thapar Enclave, Plot No. 148, Ramdaspeth; Tel: 0712 2526 220, 09373283527. Raipur: 1 Floor, 141, Sundernagar, Near Adarsh Chowk; Tel: 0771 2210 240. 09329128913. Chennai : Door No. 9, Flat No. 7, 1 Floor, Thiru. Vi. Ka. Road, Royapettah, (opp, Sathyam Theatre), Tel: 044 4351 0152, 09382102392, Fax: 044 4351 0153. Secunderabad: Cabin No. 47, 303, Swapnalok Complex, 92, S. D. Road; Tel: 040 2781 2724, 09391340619. Bangalore : C1-101, White House, 15 Cross, 6 Main R. T. Nagar; Tel: 080 2655 8729, 09341279429. Bhubaneswar : C/o. Plot No. 16-b, Engineers Colony, Old Station Bazar; Tel: 0674 231 3744, 09338212907. Jamsbedpur: C/o. Mr. D. P. Ghosh, House No. 7, Bidyasagar Path, Uliyan, Kadma; Tel: 0 93346 12014. Marathon Electric India Pvt. Ltd. Sec.-11 Model Town, Faridabad - 121006 (INDIA), Tel: 0129 2286421/2265340; Fax : 01292284855, email : [email protected] GEMI Regional Offices : Ahmedbad : 406, Vedant Complex, 7, Kalpana Colony, Off. C.G. Road, Navrangpura, Ahmedabad-380009, Tel: 079-26561819, 9825611502. Fax: 079-26560452. Chennai : 6 Arcot Road, Vadapalani, Chennai - 600092, Tel: 044-42136697, 42333353, 9840429331, Fax: 044-42082322. Jaipur : C/o Flat No. 104, Block A, Rama Heritage Apartments, Central Spine, Vidhyadhar Nagar, Jaipur-302 023. Ph: 9982655661. Kolkata : 58, Taratala Road, Kolkata - 700024; Tel: 91 033 24695560/61, Fax: 033 24695369/8530. Mumbai : B-908/909, Sagar Tech Plaza, Andheri - Kurla Road, Saki Naka, Andheri (East), Mumbai - 400072, Tel: 022-28523106, 9833756269, Fax: 022-28528938. Pune : C/o: 8, Sethu Apartments, Right Bhusari Colony, Paud Road, Kothrud, Pune-411038, Tel: 020-65224846, 9960604846. Bangalore : Tel:9342299995. Hyderabad : Tel:9393002665. Delhi : Flat No. 516-518, 5th Floor, Antriksh Bhawan, 22 K.G. Marg New Delhi -01 Tel: 9873184209.

MEMI/CAT/AFFCFF/1108/02 Replaces RMG–FE–TC 003.C.01/2008

Specialized custom built motors • Specialists in short cycle deliveries

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